Transmission electron microscopy study of a dental gallium alloy

被引：9

作者：

Gunnaes, AE ^{[1
]}

Olsen, A ^{[1
]}

Hero, H ^{[1
]}

机构：

[1] NIOM,SCANDINAVIAN INST DENT MAT,N-1344 HASLUM,NORWAY

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE | 1996年 / 7卷 / 07期

关键词：

D O I：

10.1007/BF00122015

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Analytical transmission electron microscopy (TEM) studies of a dental gallium alloy have been carried out. This commercial Ga alloy was made by triturating a Ag-Sn-Cu-rich alloy powder with a liquid Ga a I toy containing Ga, In and Sn. Ga alloys a re of increasing interest as an alternative to amalgam. The dental material studied in the present work was found to be a composite consisting of remaining, undissolved particles from the Ag-based alloy powder in a matrix of reaction products with the liquid Ga alloy. The phases in the matrix and the remaining Ag-based alloy particles have been identified by electron diffraction, high resolution electron microscopy and energy dispersive X-ray spectroscopy. The following phases were identified: orthorhombic Ag3Sn, cubic gamma-Cu9Ga4, cubic Ag9In4, tetragonal beta-Sn and hexagonal Ag2Ga. In addition to these well-known phases Ga-rich regions of Cu-Ga were observed consisting of an intergrowth of the tetragonal CuGa2 and one of the cubic gamma-Cu9Ga4 phases.

引用

页码：447 / 455

页数：9

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